Comparisons of schizotypal traits across 12 countries: Results from the International Consortium for Schizotypy Research

Eduardo Fonseca-Pedrero, Raymond C K Chan, Martin Debbané, David Cicero, Lisa C Zhang, Colleen Brenner, Emma Barkus, Richard J Linscott, Thomas Kwapil, Neus Barrantes-Vidal, Alex Cohen, Adrian Raine, Michael T Compton, Erin B Tone, Julie Suhr, José Muñiz, Alicia Pérez de Albéniz, Axit Fumero, Stella Giakoumaki, Ioannis TsaousisAntonio Preti, Michael Chmielewski, Julien Laloyaux, Anwar Mechri, Mohamed Aymen Lahmar, Viviana Wuthrich, Frank Larøi, Johanna C Badcock, Assen Jablensky, Javier Ortuño-Sierra

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

BACKGROUND: Schizotypal traits are expressions of underlying vulnerability to psychotic disorders which have a potential impact on mental health status, neurocognition, quality of life, and daily functioning. To date, little research has examined epidemiologic landscape of schizotypal traits at the cross-national level. Our aim was to study the expression of schizotypal traits by sex, age, and country in a combined sample gathered from 12 countries.

METHODS: A total of 27,001 participants completed the Schizotypal Personality Questionnaire (SPQ). The mean age of participants was 22.12 (SD=6.28); 37.5% (n=10,126) were males.

RESULTS: Schizotypal traits varied according to sex, age, and country. Females scored higher than males in the positive dimension, whereas males scored higher in the disorganization dimension. By age, a significant decrease in the positive schizotypal traits was observed. Epidemiological expression of schizotypal traits varied by country. Moreover, several interactions by sex, age, and country were found.

CONCLUSIONS: This pattern is similar to those found in patients with psychosis and psychotic-like experiences. These findings provide new insights and the opportunity to explore the phenotypic expression of schizotypal traits at cross-national level.

Original languageEnglish
Pages (from-to)128-134
Number of pages7
JournalSchizophrenia Research
Volume199
Early online date19 Mar 2018
DOIs
Publication statusPublished - 1 Sep 2018
Externally publishedYes

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